PMID- 26683206 OWN - NLM STAT- MEDLINE DCOM- 20160909 LR - 20181113 IS - 1472-6882 (Electronic) IS - 1472-6882 (Linking) VI - 15 DP - 2015 Dec 18 TI - The antioxidative effects of acidic-, alkalic-, and enzymatic-extractable mycelium zinc polysaccharides by Pleurotus djamor on liver and kidney of streptozocin-induced diabetic mice. PG - 440 LID - 10.1186/s12906-015-0964-1 [doi] LID - 440 AB - BACKGROUND: Edible mushrooms, especially the genus of Pleurotus, have been well studied for their nutrition as well as non-toxic medicinal properties. Recently, much attention has been paid to the therapeutic values of mushrooms in genus of Pleurotus with diabetes mellitus (DM), which was a complex metabolic disorder that induced by increased oxidative stress and characterized by hyperglycemia. However, scare attention has been paid to polysaccharides from P. djamor. Meanwhile, zinc is an essential trace element in the human body and it participates in various pathways of metabolism. Therefore, the objective of present study was aimed to evaluate the protective effects of the three extractable mycelium zinc polysaccharides (MZPS), including acidic-MZPS (Ac-MZPS), alkalic-MZPS (Al-MZPS) and enzymatic-MZPS (En-MZPS), on the liver and kidneys in diabetic mice induced by streptozocin (STZ) aiming to better understand the possible hypoglycemic mechanisms and their health benefits. METHODS: The Ac-, Al-, and En-MZPS were extracted with hydrochloric acid (1 M), sodium hydroxide (1 M) and snailase (4 %) from P. djamor zinc-enriched mycelium, respectively. The diabetic mice were induced by injection of STZ. Besides the histopathological analyses of liver and kidney, the following biochemical analysis were processed to investigate the antioxidative effects, including activities of superoxide dismutase (SOD), GSH peroxide (GSH-Px) and catalase (CAT), and contents of malondialdehyde (MDA) in liver and kidney homogenate; activities of alamine aminotransferase (ALT) and aspertate aminotransferase (AST), and levels of urea nitrogen (BUN), creatinine (CRE), total cholesterol (TC), albumin (ALB), high-density lipoprotein cholesterol (HDL-C), low-density lipoprotein cholesterol (LDL-C) and very low-density lipoprotein cholesterol (VLDL-C) in serum. RESULTS: Results showed that the activities of SOD, GSH-Px and CAT were significantly increased, the MDA contents remarkably reduced, and the values of ALT, AST, BUN, CRE, TC, LDL-C and HDL-C observably mitigated in the liver, kidneys and serum of diabetic mice by these three polysaccharides treatment. Biochemical and histopathological analyses also showed that MZPS could alleviate liver and kidneys injury. CONCLUSION: These results demonstrated that Ac-, Al-, and En-MZPS possessed potent antioxidant activities, and could be used as a potentially functional food for the prevention of diabetes and its complications induced by STZ. FAU - Zhang, Jianjun AU - Zhang J AD - College of Life Science, Shandong Agricultural University, Taian, 271018, PR China. FAU - Meng, Guangyuan AU - Meng G AD - The Central Hospital of Taian, Taian, Shandong, 271000, PR China. FAU - Zhang, Chen AU - Zhang C AD - College of Life Science, Shandong Agricultural University, Taian, 271018, PR China. FAU - Lin, Lin AU - Lin L AD - College of Life Science, Shandong Agricultural University, Taian, 271018, PR China. FAU - Xu, Nuo AU - Xu N AD - College of Life Science, Shandong Agricultural University, Taian, 271018, PR China. FAU - Liu, Min AU - Liu M AD - College of Life Science, Shandong Agricultural University, Taian, 271018, PR China. FAU - Cui, Fangyuan AU - Cui F AD - College of Life Science, Shandong Agricultural University, Taian, 271018, PR China. FAU - Jia, Le AU - Jia L AD - College of Life Science, Shandong Agricultural University, Taian, 271018, PR China. jiale0525@163.com. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20151218 PL - England TA - BMC Complement Altern Med JT - BMC complementary and alternative medicine JID - 101088661 RN - 0 (Antioxidants) RN - 0 (Polysaccharides) RN - 4Y8F71G49Q (Malondialdehyde) RN - 5W494URQ81 (Streptozocin) RN - EC 1.11.1.6 (Catalase) RN - EC 1.15.1.1 (Superoxide Dismutase) RN - GAN16C9B8O (Glutathione) RN - J41CSQ7QDS (Zinc) SB - IM MH - Animals MH - Antioxidants/*administration & dosage/chemistry/isolation & purification MH - Catalase/metabolism MH - Diabetes Mellitus, Experimental/*drug therapy MH - Female MH - Glutathione/metabolism MH - Humans MH - Kidney/drug effects/enzymology/metabolism MH - Liver/drug effects/enzymology/metabolism MH - Male MH - Malondialdehyde/metabolism MH - Mice MH - Mycelium/chemistry MH - Oxidative Stress/drug effects MH - Pleurotus/*chemistry MH - Polysaccharides/*administration & dosage/chemistry/isolation & purification MH - Streptozocin MH - Superoxide Dismutase/metabolism MH - Zinc/chemistry PMC - PMC4683725 EDAT- 2015/12/20 06:00 MHDA- 2016/09/10 06:00 PMCR- 2015/12/18 CRDT- 2015/12/20 06:00 PHST- 2015/07/17 00:00 [received] PHST- 2015/12/09 00:00 [accepted] PHST- 2015/12/20 06:00 [entrez] PHST- 2015/12/20 06:00 [pubmed] PHST- 2016/09/10 06:00 [medline] PHST- 2015/12/18 00:00 [pmc-release] AID - 10.1186/s12906-015-0964-1 [pii] AID - 964 [pii] AID - 10.1186/s12906-015-0964-1 [doi] PST - epublish SO - BMC Complement Altern Med. 2015 Dec 18;15:440. doi: 10.1186/s12906-015-0964-1.